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Finding the Fourth Proportional to 356,842.50, 492,442.65 and 197,866.50

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Solution

The fourth proportional to 356,842.50, 492,442.65 and 197,866.50 is: 273,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,842.50 : 492,442.65 = 197,866.50 : x
  2. Step 2: Convert to fraction form
    356,842.50/492,442.65 = 197,866.50/x
  3. Step 3: Cross multiply
    356,842.50x = 492,442.65 × 197,866.50
  4. Step 4: Simplify right side
    356,842.50x = 97,437,903,606.23
  5. Step 5: Solve for x
    x = 97,437,903,606.23/356,842.50
  6. Step 6: Final answer
    x = 273,055.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.